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Overview

Frogger was a product of the popularization of "cute" games throughout 1981 that moved away from alien and explosion themes. In the game, you must direct a frog through traffic, and across a crowded river, and in to one of five enclosures at the top of the screen. Frogger isn't credited with many innovations, but it did break ground in continuous background music that changed contextually based on the action in the game.

Game Play

Controls:

  • Joystick: Use to direct the frog throughout the screen. Unlike many games, the joystick must be returned to the neutral position before being moved again to make the frog continue in the direction you wish for him to go.
  • 1 or 2 Players: Push these buttons to begin a one or two player game.
  • Detailed Game Play and Characters Guide

Arcade MegaWing Controls

Game Function Physical Interface Image
Coin 1 Up
Coin 2 Down
Start 1 Left
Start 2 Right
Move Left Joystick Left
Move Right Joystick Right
Move Up Joystick Up
Move Down Joystick Down
Fire Not Used

Hardware Specifications

  • CPU:
    • Z80 at 3.072 MHz
    • Z80 at 1.78975 MHz
  • Sound AY-3-8910A at 1.789750 MHz
  • Display
    • Resolution 768 x 224
    • Orientation Vertical
    • Refresh Rate 60.61 Hz

Source Code Customization

The VHDL source code can be customized to control the following options.

Look for the following code in the scramble_top.vhd:

--1   2   3   4   5       Meaning
  -------------------------------------------------------
  --On  On                  3 Frogs
  --On  Off                 5 Frogs
  --Off On                  7 Frogs
  --Off Off                 256 Frogs (!)
  --
  --        On              Upright unit
  --        Off             Cocktail unit
  --
  --            On  On      1 coin 1 play
  --            On  Off     2 coins 1 play
  --            Off On      3 coins 1 play
  --            Off Off     1 coin 2 plays

    ip_dip_switch(5 downto 4)  <= not "11";
    ip_dip_switch(3)           <= not '1';
    ip_dip_switch(2 downto 1)  <= not "01";

Attribution

Some text on this page comes directly from Strategy Wiki and is reposted under the Attribution-Share Alike 3.0 Unported license.

Some text on this page comes directly from Wikipedia and is reposted under the Creative Commons Attribution-ShareAlike License license.

Some images on this page comes directly from Namedb and are reposted under the name of namedb.

  

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